<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/welcome' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <el-card>
      <!-- 商品搜索框和添加商品 -->
      <el-row :gutter="20">
        <!-- 商品搜索框 -->
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getGoodsList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="
                handleCurrentChange(1);
                getGoodsList;
              "
            ></el-button>
          </el-input>
        </el-col>

        <!--添加商品分类组件-->
        <el-col :span="4">
          <el-button type="primary" @click="goAddPage">添加商品</el-button>
        </el-col>
      </el-row>

      <!-- 表格数据 -->
      <el-table :data="goodsList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column
          label="商品价格(元)"
          prop="goods_price"
          width="100px"
        ></el-table-column>
        <el-table-column
          label="商品重量"
          prop="goods_weight"
          width="70px"
        ></el-table-column>
        <el-table-column
          label="商品数量"
          prop="goods_number"
          width="70px"
        ></el-table-column>
        <el-table-column label="创建时间" prop="add_time" width="140px">
          <template slot-scope="scope">{{
            scope.row.add_time | dataFormat
          }}</template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope">
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
            ></el-button>
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeById(scope.row.goods_id)"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        background
      ></el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 获取商品列表请求参数
      queryInfo: {
        query: "",
        pagenum: 1,
        pagesize: 10
      },

      // 返回商品总条数
      total: 0,

      // 返回商品列表
      goodsList: []
    };
  },
  methods: {

    goAddPage(){
        this.$router.push('/goods/add')
    },
    handleCurrentChange(newNum) {
      this.queryInfo.pagenum = newNum;
      this.getGoodsList();
    },

    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getGoodsList();
    },

    // 根据 Id 删除商品
    async removeById(id) {
      const confirmResult = await this.$confirm(
        "此操作将永久删除该商品, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }
      ).catch(err => err);
      if (confirmResult !== "confirm") {
        return this.$message.info("已取消删除！");
      }
      const { data: res } = await this.$http.delete("goods/" + id);
      if (res.meta.status !== 200) {
        return this.$message.error("删除商品失败！");
      }
      this.$message.success("删除商品成功！");
      this.getGoodsList();
    },

    // 获取商品列表
    async getGoodsList() {
      const { data: res } = await this.$http.get("goods", {
        params: this.queryInfo
      });

      if (res.meta.status !== 200) {
        return this.$message.error("获取商品列表失败");
      }

      this.goodsList = res.data.goods;
      this.total = res.data.total;

      console.log(res.data);
    }
  },
  created() {
    this.getGoodsList();
  }
};
</script>

<style scope></style>
